Improvement in wind-wheels



'iM/wf PETERS. PHOTOMTHQGRAPNER, WASNINGTGN dimmi mes @are 'entre AMBROSE I. MAXWELL, OF MORRISON, ILLINOIS.

Letters Patent No. 94,624, dated September 7, 1869.

IMPROVEMENT IN WIND-WHEELS.-

Tho Schedule referred to in these Letters Patent and making part of the sanne .To all whom it may concern:

Beit known that I, AMBRosE I. MAXWELL, of Morrison, in the county of Whitesides, and State of Illinois, have invented a new and useful Improvement in W'indmills; and I do hereby` declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the let- .ters of reference marked thereon.

Figure 4, a lateral section, the red lines indicatingl the position of the doors when the wind-wheel is at rest.

Like letters denote like parts in the several figures of the drawings.

My invention relates to that class of windmills in which the wind-wheel is enclosed in a box, consisting of pivoted doors, which are opened more or less, to regulate the amount of wind admitted to act on the wings of the wheel.

My invention consists in the arrangement by which these doors are opened and closed, as more fully described hereinafter.

'lo enable those skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A and A' represent the upper and lower plates of the box. They are connected by standards c a..

B represents thewind-whecl, which is pivoled in the centre of the box by its shaft B', to which it issecured This shaft extends through the plates of the box, and its ends are connected bythe necessary gearing to the machinery which thc mill is intended to drive. O O. represent the doors, which are placed around the wind-wheel. Their inner edges are provided with journals c c and c1 el, which are pivoted in the upper and lower plates respectively.

rlhe upper journals extend through the upper plate, andare then bent to form cranks, c2 c, which point inwardly,"and are all of the same length. The' wrists of the several cranks work in the radial slots of the round disk D. Thepositions of the cranks relatively to each other and to the diskare such, that all the doors are swung simultaneously and equally by turning the disk, and thus the wind is directed upon the buckets of the wind-wheel.

D represents a round disk, which is pla-ced on the shaft of the wind-wheel, a little distance, above the upper plate A.

It is provided with radial slots, d d, near its, periphery, eqnidistant from each other. Each slot receives the wrist of a crank.

Fastened to the disk is the handle or lever D', by means of' which the disk may be turned on the shaft, for the purpose of opening the doors more or less, and thereby to regulate the speed of the mill, o r to close the doors entirely, shutting out the wind, and stoppingthe mill.

I am aware thatm'atcr-whcels have been constructed 'with swinging chutes or guides, for directing the water 'upon the buckets of the wheel, but such chutes or gates have been pivoted at or near the centre. I do not, therefore, claim, broadly, combining swinging chutes or gates with a revolving wheel, whether propelled by water or-wind; but

Having thus described my invention,

What I claim, and desire to secure by Letters Iatwitnesses.

AMBROSE I. MAXWELL.

Witnesses:

FRANK OLENDENIN, GEO. H. FAY. 

